Lamp-socket.



LAMP 300M I.

@maxaman HLEE) 5MM; 5'" |915.

Patented July S), i918.

7 ik l socket and has forits -from the following detailed JOHN w. WIEDEY, or BALTIMORE, MARYLAND.

LAMP-SOCKET.

To all 'whom it may concern:

.Be it'known that I, JOHN lV. W muur, a citizen of the United States, residing at Baltimore, in the State of Maryland, have in vented new and useful Improvements in Lamp-Sockets, of which the following is a specification. v

This invention relates to an electric lamp primary object to simplify theswitch construction While at the same time insuring perfect electrical connections.

An object of the invention is to provide a. switch element of such a character that only a very limited movement is necessary to open and close the circuit.

Another object of the invention isthe novel manner of constructing and associating the switch element with the other elements of the socket so that wear can be readily taken up so as to insure good electrical connections at all times.

Besides the above my invention is distinguished in the use of a single rotary element mounted for movement toward and away from one of the contacts of the socket and capable of exerting great pressure so s to materially decrease the restivity to the passa e of electrical current.

he invention will be better understood description taken in connection with the accompanying drawing wherein a preferred embodiment is illustrated and ,the features of novelty including all of the above mentioned and various others 4will be, thereafter pointed out in the appended claim.

In the drawing:

Figure l is a vertical sectional view of one form of socket.

Fig. 2 is a vertical sectional modified forni of my invention.

Fi3 is a side elevation of the plug.

Re rring tothe drawing, the numeral l view of a designatessthe shell socket having a screw threadedlebdss 24 and interiorly arran cd threads El, of a formation lo receive the p ug of the lamp. Fitting within the upper portion of the casing and provided with an annular flange 4 resting u on the top edge of the casing is a plug 5. his plug 5 supports a parof contacts or conductors 6 and 7, the latter having one end portion completely inclosed in the plug 5 while the former extends completely through the plug and has its lower terminal liattened so as to engage Specification of Letters Patent.

opening 11.

x breaking Patented July 9, 1918.

Application led June 3, 1918. Serial No. 101,551.

are each provided with an opening 10 while the casing 1 is provided with a threaded These openings are arranged in alinement, and threaded into the opening 11 is a screw 12 having a knurled head 13. At this point I wish to call attention to the fact that to insure the proper registration between the openings I provide a pin 14 mounted within the casing 9 and engaging the plug 5.

, From this arrangement it will be seen that very slight pressure upon the head 13 is capable of giving movement to the screwso that the same may be forced into engagement with the contact 7. Very slight movement of the screw will cause the making and of the circuit while at the saine time the screw is capable of exerting great pressure Aupon the casing l and Contact 7 for insuring a ood electrical connection.

The mo led form of my invention is identical with that just described with the exception that the contacts 15 and 16 have threaded thereon nuts 17 by means of which the usual conductors may be secured.

It is to be understood that while all of the several features of my improved lamp socket have special coperation with one another and together constitute a particularly effective device for the purpose in view, certain of these features may be applied in other relations such as the manner of associating the casing with the plug and I therefore desire to cover the combination presentV Suid plug, om: of thu lends huv'mg an eX- 10 tremty pobtm'lml to engage thu centr-ul ulectrmlu of the lump, und a headed screw umuulnml for lunvemenlI through lhvr cusugn, snulwl null plug lmvulrd uml uwuy l'mul tlm" ollur lmul. l lu lwlumuy whereof I ullx my slguuturc.

JOHN W. WIEDEY. 

